Home / 19,558.58-26,995.68-12,853.31

Finding the Fourth Proportional to 19,558.58, 26,995.68 and 12,853.31

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Solution

The fourth proportional to 19,558.58, 26,995.68 and 12,853.31 is: 17,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,558.58 : 26,995.68 = 12,853.31 : x
  2. Step 2: Convert to fraction form
    19,558.58/26,995.68 = 12,853.31/x
  3. Step 3: Cross multiply
    19,558.58x = 26,995.68 × 12,853.31
  4. Step 4: Simplify right side
    19,558.58x = 346,983,843.70
  5. Step 5: Solve for x
    x = 346,983,843.70/19,558.58
  6. Step 6: Final answer
    x = 17,740.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.